Features 1. Promote stimulation of blood circulation to relieve stiff muscles 2. Improved shock absorption and ligament strength for hips, knees and ankles 4. Relaxes tense back muscles and reduces nerve pressure mainly concentrating on the back, neck and hipsSpecification: Height:55.1-77.1 inches(max height) Wide:7.5-11 inches Product Dimensions:51.6 L* 28.4 W* 57.9H inches Package Dimensions：45.6L*26W*5.1H inches N.W:46 LBS; G.W:49.7 LBSFAQ: - Before installation, please read the instruction carefully to familiarize yourself with the required tools and installation sequences. In addition to proper installation, Please read all operating and safety instructions. If having any problem, please feel free to contact us. - We advise having an assistant to “spot” you during your first using this inversion table, so you can familiarize yourself with the machine; ensure you have the correct initial setting. Please place the table on flat ground and place the safety lock properly before use it.